If, however, you had a diseased plant previously in the potting soil, or one that suffered from houseplant pests, it's best not to reuse it for other plants. Otherwise, you may spread the problem.
Well-draining potting soil is best for outdoor container gardens and indoor plants. Potting mix is for container plantings, indoors or out. Make sure your container has a drain hole in the bottom ...
The best soil for growing cannabis in containers should be a high-quality potting mix that is specifically designed for container gardening. It should have good drainage and be rich in organic matter.